Home / 11,425.87-17,144.75-5,190.31

Finding the Fourth Proportional to 11,425.87, 17,144.75 and 5,190.31

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Solution

The fourth proportional to 11,425.87, 17,144.75 and 5,190.31 is: 7,788.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,425.87 : 17,144.75 = 5,190.31 : x
  2. Step 2: Convert to fraction form
    11,425.87/17,144.75 = 5,190.31/x
  3. Step 3: Cross multiply
    11,425.87x = 17,144.75 × 5,190.31
  4. Step 4: Simplify right side
    11,425.87x = 88,986,567.37
  5. Step 5: Solve for x
    x = 88,986,567.37/11,425.87
  6. Step 6: Final answer
    x = 7,788.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.